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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Current assets    
Cash and cash equivalents $ 41,562 $ 54,721
Grant receivables 3,672 1,799
Prepaid expenses and other current assets 2,413 2,005
Other receivables   467
Total current assets 47,647 58,992
Property and equipment, net 233 145
Right-of-use assets, operating leases 813  
Other assets 1,732  
Total assets 50,425 59,137
Current liabilities    
Accounts payable 3,216 4,168
Accrued expenses 2,094 1,751
Deferred grant income, current 1,702 753
Operating lease liabilities, current 149  
Other current liabilities 634 1,192
Total current liabilities 7,795 7,864
Operating lease liabilities, noncurrent 695  
Deferred grant income and other liabilities, noncurrent 1,686 0
Total liabilities 10,176 7,864
Commitments and contingencies (Note 7)
Stockholders' equity:    
Preferred stock, $0.001 par value, 10,000,000 shares authorized at December 31, 2022 and December 31, 2021; no shares issued and outstanding at December 31, 2022 and December 31, 2021
Common stock, $0.001 par value, 250,000,000 shares authorized at December 31, 2022 and December 31, 2021; 28,991,548 and 22,230,032 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively 29 22
Additional paid-in capital 155,820 145,453
Accumulated deficit (115,401) (94,004)
Accumulated other comprehensive loss (199) (198)
Total stockholders' equity 40,249 51,273
Total liabilities and stockholders' equity $ 50,425 $ 59,137